How would you reproduce 70's style Sci fi Lighting in cycles
I would install Filmic-Blender for the epic contrast:
https://github.com/sobotka/filmic-blender  

Then either model my own spaceship by extruding parts of a mesh,
or randomly generate one with a script, then edit it however you like:
https://github.com/a1studmuffin/SpaceshipGenerator  

You can apply a Decimate modifier to reduce geometry at this point,
for a quicker render, if you prefer.  

Once model looks OK, duplicate it.  Use Wireframe modifier on the copy,
and paint that version with a mix of Glass and Emission shaders.  



Then you get that nice sci-fi Tron glow.  Play with settings to achieve desired results.
Thickness of wireframe, turn the mix Factor to more glass, less emission...

Here's the quick settings I used just to illustrate the idea:  



Edit:  You can put a tangent into the Emission shader Strength input,
to get more spaceship, less glow, as it appears in your goal.